When a body of mass moment of inertia I (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

A lifting machine lifts a load of 1000N through a distance of 0.2 m by means of an effort of 200N through a distance of 1m. This machine is an ideal one.

The maximum displacement of a body, from its mean position is called amplitude.

The negative acceleration is called retardation.

In order to determine the effects of a force, acting on a body, we must know